<!DOCTYPE html>
<html>  
<head> 
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  
  <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
  <title>Basemap gallery</title>
  <link rel="stylesheet" href="https://js.arcgis.com/3.17/dijit/themes/claro/claro.css">    
  <link rel="stylesheet" href="https://js.arcgis.com/3.17/esri/css/esri.css">
  <style> 
    html, body { height: 100%; width: 100%; margin: 0; padding: 0; }
    #map{
      padding:0;
    }
  </style> 
  
  <script src="https://js.arcgis.com/3.17/"></script>
  <script> 
    var map;
    require([
      "esri/map", "esri/dijit/BasemapGallery", "esri/arcgis/utils",
      "dojo/parser",

      "dijit/layout/BorderContainer", "dijit/layout/ContentPane", "dijit/TitlePane",
      "dojo/domReady!"
    ], function(
      Map, BasemapGallery, arcgisUtils,
      parser
    ) {
      parser.parse();

      map = new Map("map", {
        basemap: "topo",
        center: [-105.255, 40.022],
        zoom: 13
      });

      //add the basemap gallery, in this case we'll display maps from ArcGIS.com including bing maps
      var basemapGallery = new BasemapGallery({
        showArcGISBasemaps: true,
        map: map
      }, "basemapGallery");
      basemapGallery.startup();
      
      basemapGallery.on("error", function(msg) {
        console.log("basemap gallery error:  ", msg);
      });
    });
  </script> 
</head> 

<body class="claro"> 
  <div data-dojo-type="dijit/layout/BorderContainer" 
       data-dojo-props="design:'headline', gutters:false" 
       style="width:100%;height:100%;margin:0;">

    <div id="map" 
         data-dojo-type="dijit/layout/ContentPane" 
         data-dojo-props="region:'center'" 
         style="padding:0;">

      <div style="position:absolute; right:20px; top:10px; z-Index:999;">
        <div data-dojo-type="dijit/TitlePane" 
             data-dojo-props="title:'Switch Basemap', closable:false, open:false">
          <div data-dojo-type="dijit/layout/ContentPane" style="width:380px; height:280px; overflow:auto;">
            <div id="basemapGallery"></div>
          </div>
        </div>
      </div>

    </div>
  </div>
</body> 

</html>
